A322235 - cp's OEIS frontend

A322235 Triangle, read by rows, each row n being defined by g.f. Product_{k=1..n} (k + x + k*x^2), for n >= 0.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	3
6	5
7	3
8	2
9	6
10	11
11	24
12	23
13	24
14	11
15	6
16	24
17	50
18	131
19	160
20	215
21	160
22	131
23	50
24	24
25	120
26	274
27	825
28	1181
29	1890
30	1815
31	1890
32	1181
33	825
34	274
35	120
36	720
37	1764
38	5944
39	9555
40	17471
41	19866
42	24495
43	19866
44	17471
45	9555
46	5944
47	1764
48	720
49	5040
50	13068
51	48412
52	85177
53	173460
54	223418
55	313628
56	302619
57	313628
58	223418
59	173460
60	85177
61	48412
62	13068
63	5040
64	40320
65	109584
66	440684
67	834372
68	1860153
69	2642220
70	4120122
71	4521924
72	5320667
73	4521924
74	4120122
75	2642220
76	1860153
77	834372
78	440684
79	109584
80	40320
81	362880
82	1026576
83	4438620
84	8936288
85	21541905
86	33149481
87	56464695
88	68597418
89	89489025
90	86715299
91	89489025
92	68597418
93	56464695
94	33149481
95	21541905
96	8936288
97	4438620
98	1026576
99	362880

[1, 1, 1, 1, 2, 3, 5, 3, 2, 6, 11, 24, 23, 24, 11, 6, 24, 50, 131, 160, 215, 160, 131, 50, 24, 120, 274, 825, 1181, 1890, 1815, 1890, 1181, 825, 274, 120, 720, 1764, 5944, 9555, 17471, 19866, 24495, 19866, 17471, 9555, 5944, 1764, 720, 5040, 13068, 48412, 85177, 173460, 223418, 313628, 302619, 313628, 223418, 173460, 85177, 48412, 13068, 5040, 40320, 109584, 440684, 834372, 1860153, 2642220, 4120122, 4521924, 5320667, 4521924, 4120122, 2642220, 1860153, 834372, 440684, 109584, 40320, 362880, 1026576, 4438620, 8936288, 21541905, 33149481, 56464695, 68597418, 89489025, 86715299, 89489025, 68597418, 56464695, 33149481, 21541905, 8936288, 4438620, 1026576, 362880]

cp's OEIS Frontend

A322235 Triangle, read by rows, each row n being defined by g.f. Product_{k=1..n} (k + x + k*x^2), for n >= 0.

Table of values

List of values